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Modeling electrical conductivity of nanocomposites by considering carbon nanotube deformation at nanotube junctions
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View: Figures


Image of FIG. 1.
FIG. 1.

Schematics of randomly distributed CNTs in a representative cuboid.

Image of FIG. 2.
FIG. 2.

Schematic of a typical CNT junction.

Image of FIG. 3.
FIG. 3.

Calculated pseudo potential contact energy values vs. CNT-CNT distance, . (a) Total potential energy as a function of and . (b) Variation of total potential energy vs. at different distance . (c) Variations of total potential energy and vs. distance

Image of FIG. 4.
FIG. 4.

Variation of contact and intrinsic resistances vs. distance between CNTs at a junction. (a) MWCNT polymer composite and (b) SWCNT polymer composite.

Image of FIG. 5.
FIG. 5.

Statistics of deformed CNT junctions in a percolating CNT network. The solid dots represent the total CNT junctions while the hollow dots represent the junctions formed by the radially deformed CNTs.

Image of FIG. 6.
FIG. 6.

Total resistance of junctions vs. angle between two radial deformed CNTs at  = 0.1.

Image of FIG. 7.
FIG. 7.

Comparisons of electrical conductivity. (a) MWCNT and (b)SWCNT polymer composites. The dashed and solid lines represent the simulation results without and with considering the radial deformation of CNTs, respectively.

Image of FIG. 8.
FIG. 8.

Tunneling effects with different rates of work function on electrical conductivity of (a) MWCNT and (b) SWCNT nanocomposites.

Image of FIG. 9.
FIG. 9.

Electrical conductivity of (a) MWCNT and (b) SWCNT polymer composites with different changing rates of intrinsic conductivity under radial deformation.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Modeling electrical conductivity of nanocomposites by considering carbon nanotube deformation at nanotube junctions